Question

1. A particle is projected from horizontal making an angle 60• with initial velocity 40m/s .find
the time taken to the particle to make angle 45• from horizontal.
(a) 1.5s
(b) 2s
(c) 3s​

Answer 1

Answer:

a. 1.5 will be the correct answer

Explanation:

hz velocity will always same

so

40cos60 = v cos45

v = 20root 2

through vt component of initial and at 45 angle

by applying equation 1st we will find time

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